FIX:Solve the zero-fill problem

.babelrc

@@ -0,0 +1,11 @@
+{
+  "presets": [
+    ["env", { "modules": false }],
+    "stage-2",
+    "es2015"
+  ],
+  "plugins": [
+    "transform-runtime"
+  ],
+  "comments": false
+}

README.md

@@ -1,6 +1,12 @@
 Odometer
 ========
 
+```
+// 打包命令
+
+npm run build
+```
+
 Odometer is a Javascript and CSS library for smoothly transitioning numbers.
 
 ### [Overview](http://github.hubspot.com/odometer/docs/welcome)

build/webpack.base.config.js

@@ -0,0 +1,15 @@
+/**
+ * 公共配置
+ */
+module.exports = {
+  // 加载器
+  module: {
+    rules: [
+      {
+        test: /\.js$/,
+        loader: ['babel-loader'],
+        exclude: /(node_modules)/
+      }
+    ]
+  }
+};

build/webpack.config.js

@@ -0,0 +1,37 @@
+const path = require('path');
+const webpack = require('webpack');
+const merge = require('webpack-merge')
+const webpackBaseConfig = require('./webpack.base.config.js');
+const ParallelUglifyPlugin = require('webpack-parallel-uglify-plugin')
+
+process.env.NODE_ENV = 'production'
+
+module.exports = merge(webpackBaseConfig, {
+  entry: {
+    main: './odometer.js'
+  },
+  output: {
+    path: path.resolve(__dirname, '../'),
+    filename: 'odometer.min.js',
+    library: 'odometer',
+    libraryTarget: 'umd',
+    umdNamedDefine: true
+  },
+  plugins: [
+    new webpack.DefinePlugin({
+      'process.env': {
+        NODE_ENV: '"production"'
+      }
+    }),
+    new ParallelUglifyPlugin({
+      uglifyJS:{
+        output: {
+          comments: false
+        },
+        compress: {
+          warnings: false
+        }
+      }
+    })
+  ]
+});